Date of Award
2001
Degree Type
Dissertation
First Advisor
Stanley M. Barnett
Abstract
One- and two-dimensional techniques are proposed for enhancing micro-organism images using linear least-squares fitting, median filtering combined with bicubic approximation and wavelet filtering, respectively. The quality of enhanced images with pixel dimensions of 1200 x 1600 is examined from their corresponding binary images. It shows that one-dimensional modeling requires much less computation but provides relatively low quality output. On the other hand, the two-dimensional approximations for non-uniform lighting background, using both bicubic spline and wavelet filtering, are more effective and yield very high quality binary images tested with three different grayscale images.
Recommended Citation
Liu, Delong, "Enhancing micro-organism images by estimating image background" (2001). Open Access Dissertations. Paper 1763.
https://digitalcommons.uri.edu/oa_diss/1763
Terms of Use
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